Figure 4: Phylogenetic informativeness profiles for simulated amino acid and DNA alignments, on the same time scale as in Figure 1 (973 Myr period). Each of the 10 different colors represents a different mean rate, from 0.0001 (slowest, bottom) to 0.001 (fastest, top) substitutions per site per million years. Dashed lines are profiles from alignments simulated with gamma rate heterogeneity ( , and 3).